Checklist1 of Vascular Flora of Montaña de Oro State Park San Luis Obispo County, California (07 June 2019)

David J. Keil Robert F. Hoover Herbarium Biological Sciences Department California Polytechnic State University San Luis Obispo, California

Scientific Name Common Name Family Rare n Abronia latifolia yellow sand-verbena NYCTAGINACEAE v n Abronia maritima beach sand-verbena, red NYCTAGINACEAE 4.2 v sand-verbena n Abronia umbellata var. umbellata purple sand-verbena NYCTAGINACEAE v n Acer macrophyllum big-leaf maple SAPINDACEAE v n ❀ Achillea millefolium yarrow ASTERACEAE v n Acmispon brachycarpus shortpod deervetch FABACEAE v

1 Please notify the author of additions or corrections to this list ([email protected]). ❀ — See Wildflowers of San Luis Obispo, California, second edition (2018) for photograph. Most are illustrated in the first edition as well; old names for some species in square brackets. n — California native n1 — California native but planted at Montaña de Oro. i — exotic species, introduced to California, naturalized or waif. v — documented by one or more specimens (Consortium of California Herbaria record; specimen in OBI; or collection that has not yet been accessioned) o — observed during field surveys; no voucher specimen known R—California Rare Rank Scientific Name Common Name Family Rare n ❀ Acmispon glaber var. glaber common deerweed FABACEAE v n Acmispon heermannii var. orbicularis woolly deer-vetch FABACEAE v n Acmispon junceus var. biolettii Biolett's rush deerweed FABACEAE v n Acmispon junceus var. junceus common rush deerweed FABACEAE v n Acmispon maritimus var. maritimus coastal deer-vetch FABACEAE v n Acmispon micranthus fishhook deervetch FABACEAE v n Acmispon parviflorus miniature deervetch FABACEAE o n ❀ Acmispon strigosus strigose deer-vetch FABACEAE v n Actaea rubra baneberry RANUNCULACEAE v n ❀ Adelinia grandis Pacific hound's tongue BORAGINACEAE v n ❀ Adenostoma fasciculatum var. fasciculatum chamise ROSACEAE v n Adiantum aleuticum five finger fern PTERIDACEAE o n Adiantum jordanii California maidenhair fern PTERIDACEAE v n ❀ Ageratina adenophora sticky snakeroot ASTERACEAE v n ❀ Agoseris grandiflora var. grandiflora large-flowered mountain- ASTERACEAE o dandelion n Agrostis exarata western bentgrass, spike v bentgrass n Agrostis gigantea redtop bentgrass POACEAE v n Agrostis pallens San Diego bentgrass POACEAE v i Agrostis stolonifera creeping bentgrass POACEAE v i Agrostis tandilensis Kennedy's bentgrass POACEAE v i Aira caryophyllea silver hairgrass POACEAE o n Allophyllum glutinosum sticky false-gilia POLEMONIACEAE o n Ambrosia chamissonis beach bursage, beachbur ASTERACEAE v n ❀ Amsinckia menziesii small-flowered fiddleneck BORAGINACEAE v n Amsinckia spectabilis var. microcarpa mesa fiddleneck BORAGINACEAE v Scientific Name Common Name Family Rare n Amsinckia spectabilis var. spectabilis seaside fiddleneck BORAGINACEAE ? n Anaphalis margaritacea pearly everlasting ASTERACEAE v n ❀ Antirrhinum kelloggii climbing snapdragon PLANTAGINACEAE v n Aphanes occidentalis western parsley-piert ROSACEAE v n Aphyllon californicum subsp. grande California broomrape OROBANCHACEAE v n Apiastrum angustifolium mock-celery APIACEAE v i Apium graveolens celery APIACEAE v i Aptenia cordifolia baby sun-rose AIZOACEAE v n Aralia californica California spikenard, elk- ARALIACEAE v clover n ❀ Arbutus menziesii madrone ERICACEAE v n Arctostaphylos crustacea subsp. crustacea brittle-leaved manzanita ERICACEAE v n Arctostaphylos morroensis Morro manzanita ERICACEAE 1B.1 v n Arctostaphylos pechoensis Pecho manzanita ERICACEAE 1B.2 v n Arctostaphylos tomentosa subsp. daciticola dacite manzanita ERICACEAE 1B.1 ? n ❀ Artemisia californica California sagebrush ASTERACEAE v n ❀ Artemisia douglasiana mugwort ASTERACEAE v n Artemisia dracunculus wild tarragon ASTERACEAE v i Asparagus asparagoides bridal creeper, florist's- ASPARAGACEAE v smilax i Asparagus officinalis subsp. officinalis asparagus ASPARAGACEAE v i ❀ Asphodelus fistulosus asphodel ASPHODELACEAE v n Astragalus nuttallii var. nuttallii ocean bluff locoweed, FABACEAE 4.2 v ocean bluff milk-vetch n Astragalus nuttallii var. virgatus San Francisco milk-vetch FABACEAE v n Astragalus pomonensis Pomona locoweed FABACEAE v n Athyrium filix-femina var. cyclosorum lady fern WOODSIACEAE v Scientific Name Common Name Family Rare n Atriplex leucophylla beach saltbush CHENOPODIACEAE v i Atriplex prostrata fat-hen orach CHENOPODIACEAE v i Atriplex semibaccata Australian saltbush CHENOPODIACEAE v n Atriplex watsonii Watson's saltbush CHENOPODIACEAE v i Avena barbata slender wild oats POACEAE v i Avena fatua common wild oats POACEAE v i Avena sativa cultivated oats POACEAE v n ❀ Baccharis glutinosa marsh baccharis ASTERACEAE v n ❀ Baccharis pilularis coyote bush ASTERACEAE v n ❀ Barbarea orthoceras American wintercress BRASSICACEAE v n ❀ Blitum californicum [Chenopodium California goosefoot CHENOPODIACEAE v californicum] n Bolboschoenus maritimus subsp. paludosus alkali bulrush, saltmarsh CYPERACEAE v bulrush n Bolboschoenus robustus x B. maritimus hybrid bulrush CYPERACEAE v i Brachypodium hybridum false brome POACEAE o i ❀ Brassica nigra black mustard BRASSICACEAE o i Brassica oleracea cabbage BRASSICACEAE v i ❀ Brassica rapa field mustard BRASSICACEAE v n Bromus carinatus var. carinatus California brome POACEAE v i Bromus catharticus var. catharticus rescue grass POACEAE v i Bromus catharticus var. elatus Chilean brome POACEAE v i Bromus diandrus ripgut brome POACEAE v i Bromus hordeaceus soft chess brome POACEAE v i Bromus madritensis foxtail chess POACEAE v n Bromus pseudolaevipes woodland brome POACEAE v i Bromus rubens red brome POACEAE v Scientific Name Common Name Family Rare i Cakile maritima European sea rocket BRASSICACEAE v n Calandrinia breweri Brewer's calandrinia MONTIACEAE 4.2 v n ❀ Calandrinia menziesii [Calandrinia ciliata] red maids MONTIACEAE v n ❀ Calystegia macrostegia subsp. cyclostegia coast morning glory CONVOLVULACEAE v n Calystegia soldanella beach morning glory CONVOLVULACEAE v n Camissonia strigulosa strigose suncup ONAGRACEAE o n Camissoniopsis cheiranthifolia subsp. beach suncup, beach ONAGRACEAE v cheiranthifolia evening-primrose n Camissoniopsis micrantha small-flowered suncup ONAGRACEAE v i Capsella bursa-pastoris shepherd's purse BRASSICACEAE o n ❀ Cardamine californica milk maids, rain bells, BRASSICACEAE v California toothwort n Cardionema ramosissimum sand mat CARYOPHYLLACEAE v i ❀ Carduus pycnocephalus Italian thistle ASTERACEAE v i Carduus tenuiflorus slender-flowered thistle ASTERACEAE v n Carex globosa round-fruited sedge CYPERACEAE v n Carex obnupta slough sedge CYPERACEAE v n Carex praegracilis black creeper sedge CYPERACEAE o n Carex subbracteata small-bracted sedge CYPERACEAE v i Carpobrotus chilensis Chilean iceplant, sea-fig AIZOACEAE v i ❀ Carpobrotus edulis highway iceplant AIZOACEAE v n ❀ Castilleja affinis subsp. affinis coast Indian paintbrush OROBANCHACEAE v n Castilleja densiflora subsp. densiflora dense flowered owl's- OROBANCHACEAE v clover n Castilleja exserta subsp. exserta common owl's-clover OROBANCHACEAE v n Ceanothus cuneatus var. fascicularis dune buckbrush RHAMNACEAE 4.2 v n ❀ Ceanothus cuneatus var. ramulosus coast buckbrush RHAMNACEAE v Scientific Name Common Name Family Rare n ❀ Ceanothus papillosus wartleaf ceanothus RHAMNACEAE v n Ceanothus thyrsiflorus var. griseus Carmel ceanothus RHAMNACEAE v i Cenchrus clandestinus kikiyu grass POACEAE v i Cenchrus longisetus feathertop fountaingrass POACEAE v i ❀ Centaurea melitensis tocalote, Maltese star ASTERACEAE v thistle i Cerastium glomeratum annual mouse-ear CARYOPHYLLACEAE v chickweed i Chenopodiastrum murale [Chenopodium pigweed goosefoot CHENOPODIACEAE v murale] n Chenopodium berlandieri var. zschackei pit-seeded goosefoot CHENOPODIACEAE v n Chenopodium littoreum coastal goosefoot CHENOPODIACEAE 1B.2 v n Chloropyron maritimum subsp. maritimum salt marsh bird's-beak OROBANCHACEAE 1B.2 v n Chorizanthe angustifolia narrow-leaved spineflower POLYGONACEAE v n ❀ Chorizanthe palmeri Palmer's spineflower POLYGONACEAE 4.2 v n Chrysolepis chrysophylla var. minor golden chinquapin FAGACEAE v n Cicuta douglasii western water hemlock APIACEAE v n Cirsium brevistylum Indian thistle ASTERACEAE v n Cirsium occidentale var. occidentale cobwebby thistle ASTERACEAE v i ❀ Cirsium vulgare bull thistle ASTERACEAE v n Clarkia cylindrica subsp. cylindrica speckled clarkia ONAGRACEAE v n Clarkia prostrata prostrate clarkia ONAGRACEAE v n ❀ Clarkia purpurea subsp. quadrivulnera fourspot clarkia ONAGRACEAE v n Claytonia parviflora subsp. parviflora narrow-leaved miner's MONTIACEAE v lettuce n Claytonia perfoliata subsp. mexicana common miner's lettuce MONTIACEAE v n ❀ Claytonia perfoliata subsp. perfoliata common miner's lettuce MONTIACEAE v Scientific Name Common Name Family Rare n ❀ Clematis ligusticifolia virgin's bower RANUNCULACEAE v n ❀ Clinopodium douglasii yerba buena LAMIACEAE v n Collinsia bartsiifolia var. davidsonii Davidson's Chinese PLANTAGINACEAE v houses n Collomia heterophylla variable-leaved POLEMONIACEAE v trumpetflower i Conicosia pugioniformis slender-leaved iceplant AIZOACEAE v i ❀ Conium maculatum poison hemlock APIACEAE v n ❀ Cordylanthus rigidus subsp. rigidus thread-leaved bird's-beak OROBANCHACEAE o n ❀ Corethrogyne filaginifolia California-aster ASTERACEAE v n ❀ Cornus sericea subsp. sericea red-osier dogwood CORNACEAE v i Cortaderia jubata jubata grass POACEAE v i ❀ Cotula coronopifolia brass buttons ASTERACEAE v n ❀ Crassula connata common pygmyweed CRASSULACEAE v i Crassula tillaea moss pygmyweed CRASSULACEAE o n ❀ Crocanthemum scoparium California rush-rose CISTACEAE v n ❀ Croton californicus California croton EUPHORBIACEAE v n ❀ Cryptantha clevelandii var. florosa coastal cryptantha BORAGINACEAE v n Cryptantha microstachys Tejon cryptantha BORAGINACEAE v n Cucurbita foetidissima stinking gourd CUCURBITACEAE v n Cuscuta californica var. californica common chaparral dodder CONVOLVULACEAE o n Cuscuta californica var. papillosa papillate chaparral dodder CONVOLVULACEAE o n Cuscuta pacifica var. pacifica salt marsh dodder CONVOLVULACEAE v n ❀ Cuscuta subinclusa canyon dodder CONVOLVULACEAE v i Cynodon dactylon Bermuda grass POACEAE v n Danthonia californica California oatgrass POACEAE v Scientific Name Common Name Family Rare i Datura stramonium common jimson weed SOLANACEAE v n Daucus pusillus American wild carrot APIACEAE o n ❀ Deinandra increscens subsp. increscens grassland tarweed ASTERACEAE v n ❀ Delairea odorata cape-ivy ASTERACEAE o n Delphinium californicum subsp. californicum California larkspur RANUNCULACEAE v n ❀ Dendromecon rigida bush poppy, tree poppy PAPAVERACEAE v n Deschampsia elongata slender hairgrass POACEAE v n Descurainia pinnata subsp. glabra western tansy-mustard BRASSICACEAE v n ❀ Diplacus aurantiacus var. aurantiacus common bush PHRYMACEAE v [Mimulus aurantiacus] monkeyflower n ❀ Dipterostemon capitatus subsp. capitatus blue-dicks, schoolbells THEMIDACEAE v [Dichelostemma capitatum subsp. capitatum] n Distichlis spicata saltgrass POACEAE v n Dithyrea maritima beach spectaclepod BRASSICACEAE 1B.1 v n Drymocallis glandulosa var. glandulosa sticky cinquefoil ROSACEAE o n Drymocallis glandulosa var. wrangelliana sticky cinquefoil ROSACEAE o n Dryopteris arguta California wood fern DRYOPTERIDACEAE v n Dudleya caespitosa coast dudleya CRASSULACEAE v n ❀ Dudleya lanceolata lance-leaf dudleya CRASSULACEAE o i calycina common veldtgrass POACEAE v i Ehrharta erecta panic veldtgrass POACEAE o n Elymus condensatus giant wildrye POACEAE v n Elymus glaucus subsp. glaucus blue wildrye POACEAE o n Elymus mollis subsp. mollis American dunegrass POACEAE v n Elymus pacificus Pacific wildrye POACEAE v n Elymus triticoides beardless wildrye POACEAE o i Emex spinosa three-corner-jack POLYGONACEAE v Scientific Name Common Name Family Rare n ❀ Epilobium canum subsp. canum California-fuchsia ONAGRACEAE v n ❀ Epilobium ciliatum subsp. ciliatum common willow-herb ONAGRACEAE v n Equisetum laevigatum slender scouring-rush EQUISETACEAE v n Equisetum telmateia subsp. braunii giant horsetail EQUISETACEAE v n Eriastrum densifolium subsp. densifolium dunes giant woolly-star POLEMONIACEAE v n Ericameria ericoides mock-heather ASTERACEAE v n Erigeron blochmaniae Blochman's fleabane daisy ASTERACEAE 1B.2 v i Erigeron canadensis common horseweed ASTERACEAE v n Erigeron foliosus var. foliosus common leafy fleabane ASTERACEAE v daisy n Erigeron foliosus var. franciscensis San Francisco leafy ASTERACEAE v fleabane daisy n Erigeron sanctarum the saints' fleabane daisy ASTERACEAE 4.2 v n ❀ Eriodictyon altissimum Indian Knob mountain NAMACEAE 1B.1 v balm n ❀ Eriogonum parvifolium coastal buckwheat POLYGONACEAE v n ❀ Eriophyllum confertiflorum var. confertiflorum common golden-yarrow ASTERACEAE v n Eriophyllum multicaule many-branched woolly- ASTERACEAE v daisy n Eriophyllum staechadifolium seaside golden-yarrow ASTERACEAE v i ❀ Erodium botrys storkbill filaree GERANIACEAE v i ❀ Erodium cicutarium redstem filaree GERANIACEAE v i Erodium moschatum greenstem filaree GERANIACEAE o n Erysimum suffrutescens suffrutescent wallflower BRASSICACEAE 4.2 v n ❀ Erythranthe cardinalis [Mimulus cardinalis] scarlet monkeyflower PHRYMACEAE v n ❀ Erythranthe guttata [Mimulus guttatus] common monkeyflower PHRYMACEAE v n ❀ Eschscholzia caespitosa Foothill poppy PAPAVERACEAE v Scientific Name Common Name Family Rare n ❀ Eschscholzia californica California poppy PAPAVERACEAE v i Eucalyptus botryoides southern-mahogany MYRTACEAE v i Eucalyptus camaldulensis red gum, river red gum MYRTACEAE v i Eucalyptus cladocalyx sugar gum MYRTACEAE v i Eucalyptus conferruminata spider gum, bushy yate MYRTACEAE o i Eucalyptus globulus blue gum MYRTACEAE v i Eucalyptus tereticornis forest red gum MYRTACEAE v i Eucalyptus viminalis manna gum, ribbon gum MYRTACEAE v n ❀ Eucrypta chrysanthemifolia var. sweet eucrypta HYDROPHYLLACEAE v chrysanthemifolia n Euphorbia crenulata Chinese-caps spurge EUPHORBIACEAE v i ❀ Euphorbia peplus petty spurge EUPHORBIACEAE v n Extriplex californica [Atriplex californica] California orach CHENOPODIACEAE v i Festuca arundinacea tall fescue POACEAE v i Festuca bromoides brome fescue POACEAE v n Festuca californica California fescue POACEAE v n Festuca elmeri Elmer's fescue POACEAE v n Festuca microstachys three-weeks fescue, small POACEAE v fescue i Festuca myuros rattail fescue POACEAE v n Festuca occidentalis western fescue POACEAE o n Festuca octoflora sixweeks fescue POACEAE v i Festuca perennis ryegrass POACEAE v i ❀ Foeniculum vulgare fennel APIACEAE v n Fragaria vesca woodland strawberry ROSACEAE v n ❀ Frangula californica subsp. californica California coffeeberry RHAMNACEAE v n Frankenia salina alkali-heath FRANKENIACEAE v Scientific Name Common Name Family Rare n ❀ Fritillaria affinis checker lily LILIACEAE ? n ❀ Fritillaria biflora var. biflora chocolate lily LILIACEAE v n Galium andrewsii prickly bedstraw RUBIACEAE v n Galium andrewsii subsp. andrewsii prickly bedstraw RUBIACEAE v n ❀ Galium aparine cleavers, common RUBIACEAE v bedstraw, goosegrass n Galium californicum subsp. californicum California bedstraw RUBIACEAE v i Galium parisiense Parisian bedstraw RUBIACEAE v n Galium porrigens var. porrigens climbing bedstraw RUBIACEAE x n ❀ Gamochaeta ustulata Pacific cudweed ASTERACEAE v n ❀ Garrya elliptica coastal silk-tassel bush GARRYACEAE v i Gastridium phleoides nitgrass POACEAE v n Gaultheria shallon salal ERICACEAE v n Geranium carolinianum Carolina geranium GERANIACEAE o i ❀ Geranium dissectum cut-leaved geranium GERANIACEAE v i Geranium rotundifolium round-leaved geranium GERANIACEAE v n ❀ Gilia achilleifolia subsp. achilleifolia California gilia POLEMONIACEAE v n ❀ Grindelia hirsutula California gumplant ASTERACEAE o n ❀ Hazardia squarrosa var. squarrosa large-headed sawtooth ASTERACEAE v goldenbush i Hedypnois rhagadioloides Creteweed ASTERACEAE o n Helenium puberulum rosilla sneezeweed ASTERACEAE v n ❀ Heliotropium curassavicum var. oculatum salt heliotrope HELIOTROPIACEAE v n ❀ Hesperocnide tenella black-haired stinging nettle URTICACEAE v n1 Hesperocyparis macrocarpa Monterey cypress CUPRESSACEAE v Scientific Name Common Name Family Rare n ❀ Heteromeles arbutifolia toyon, Christmas berry, ROSACEAE v california-holly n ❀ Heterotheca grandiflora telegraph weed ASTERACEAE v n Hieracium argutum southern hawkweed ASTERACEAE o i ❀ Hirschfeldia incana short-pod mustard, BRASSICACEAE o perennial mustard n ❀ Hoita orbicularis round-leaved leatherroot FABACEAE v n ❀ Holodiscus discolor ocean spray, creambush ROSACEAE v n Hordeum brachyantherum subsp. californicum California meadow barley POACEAE v i Hordeum murinum subsp. leporinum mouse foxtail barley POACEAE v n Horkelia cuneata var. cuneata wedgeleaf horkelia ROSACEAE v n Horkelia cuneata var. sericea Kellogg's horkelia ROSACEAE 1B.1 v i ❀ Hypochaeris glabra smooth cat's-ear ASTERACEAE v n Iris douglasiana Douglas iris IRIDACEAE v n Isocoma menziesii var. vernonioides coastal goldenbush ASTERACEAE v n Isolepis cernua nodding dwarf bulrush, CYPERACEAE v California clubrush n Jaumea carnosa salty Susan ASTERACEAE v n Juncus acutus subsp. leopoldii giant spiny rush JUNCACEAE 4.2 v n Juncus balticus subsp. ater baltic rush JUNCACEAE v n Juncus breweri salt rush JUNCACEAE ? n Juncus bufonius var. bufonius common toadrush JUNCACEAE v n Juncus effusus subsp. pacificus Pacific rush JUNCACEAE ? n Juncus hesperius bog rush JUNCACEAE v n Juncus lescurii San Francisco rush JUNCACEAE ? n Juncus occidentalis western rush JUNCACEAE v n Juncus patens spreading rush JUNCACEAE v Scientific Name Common Name Family Rare n ❀ Juncus phaeocephalus var. phaeocephalus common brown-headed JUNCACEAE vc rush n Juncus xiphioides iris-leaved rush JUNCACEAE v n ❀ Keckiella cordifolia red climbing-penstemon PLANTAGINACEAE v i Kickxia elatine sharp-leaved fluellen PLANTAGINACEAE v n Koeleria macrantha Junegrass POACEAE v i Lactuca saligna slender lettuce ASTERACEAE o i Lamarckia aurea goldentop grass POACEAE v n Lastarriaea coriacea leather spineflower POLYGONACEAE o n ❀ Lasthenia gracilis common goldfields ASTERACEAE v n Lathyrus jepsonii var. californicus Jepson's sweet-pea FABACEAE v i Lathyrus latifolius perennial sweet-pea FABACEAE v n ❀ Lathyrus vestitus var. vestitus Pacific sweet-pea FABACEAE v n ❀ Layia platyglossa common tidytips ASTERACEAE v i Lepidium didymum swinecress BRASSICACEAE x i Lepidium draba heart-pod hoary-cress BRASSICACEAE o n ❀ Lepidium nitidum shining peppercress BRASSICACEAE v n Lepidium strictum yellow-green peppercress BRASSICACEAE x n Limonium californicum California sea-lavender, PLUMBAGINACEAE v n Lithophragma cymbalaria mission woodland star SAXIFRAGACEAE v n ❀ Lithophragma heterophyllum hillside woodland star SAXIFRAGACEAE v i Lobularia maritima sweet-alyssum BRASSICACEAE o n Loeflingia squarrosa American loeflingia CARYOPHYLLACEAE v n Logfia filaginoides California cotton-rose ASTERACEAE v i Logfia gallica narrow-leaved herba impia ASTERACEAE v n ❀ Lonicera hispidula California honeysuckle CAPRIFOLIACEAE v Scientific Name Common Name Family Rare n Lonicera involucrata var. ledebourii twinberry CAPRIFOLIACEAE v i Lunaria annua L. honesty, money plant BRASSICACEAE v n ❀ Lupinus albifrons var. albifrons common silver bush lupine FABACEAE v n Lupinus arboreus tree lupine FABACEAE v n Lupinus bicolor miniature lupine FABACEAE v n Lupinus chamissonis dune bush blupine FABACEAE v n Lupinus concinnus bajada lupine FABACEAE v n ❀ Lupinus hirsutissimus stinging lupine FABACEAE v n Lupinus latifolius var. latifolius broad-leaved lupine FABACEAE v n ❀ Lupinus nanus sky lupine FABACEAE v n ❀ Lupinus succulentus arroyo lupine FABACEAE v n Lupinus truncatus chaparral lupine FABACEAE v n Lupinus variicolor manycolored lupine FABACEAE ? n Luzula comosa var. comosa Pacific woodrush JUNCACEAE v n Luzula macrantha large-flowered woodrush JUNCACEAE v i ❀ Lysimachia arvensis [Anagallis arvensis] scarlet pimpernel MYRSINACEAE v n Lysimachia maritima [Glaux maritima] sea-milkwort MYRSINACEAE v n ❀ Madia gracilis slender tarweed ASTERACEAE v n ❀ Madia sativa coast tarweed ASTERACEAE v n ❀ Mahonia pinnata subsp. pinnata coast mahonia BERBERIDACEAE v n ❀ Maianthemum racemosum greater false Solomon's RUSCACEAE v seal n Maianthemum stellatum lesser false Solomon's RUSCACEAE v seal n Malacothrix californica California-dandelion ASTERACEAE v n Malacothrix incana dunedelion ASTERACEAE 4.3 v Scientific Name Common Name Family Rare i Malva assurgentiflora island tree mallow MALVACEAE v i Malva neglecta common mallow MALVACEAE ? i Malva parviflora small-flowered mallow, MALVACEAE v cheeseweed n ❀ Marah fabacea manroot, wild cucumber CUCURBITACEAE v vine i ❀ Marrubium vulgare horehound LAMIACEAE v n ❀ Matricaria discoidea common pineapple-weed ASTERACEAE v i Medicago lupulina black medick FABACEAE v i Medicago polymorpha California bur-clover FABACEAE v n Melica imperfecta little melic POACEAE v i ❀ Melilotus indicus annual sweet-clover FABACEAE v i Melilotus officinalis yellow sweet-clover FABACEAE v i Melissa officinalis lemon balm, garden balm LAMIACEAE v n Mentzelia micrantha chaparral blazingstar, San LOASACEAE v Luis stickleaf n Microsteris gracilis slender phlox POLEMONIACEAE v n Monardella sinuata subsp. sinuata curly-leaved monardella LAMIACEAE v n ❀ Monardella villosa subsp. obispoensis Obispo coyote-mint LAMIACEAE v n Morella californica California wax-myrtle MYRICACEAE v n Mucronea californica California spineflower POLYGONACEAE 4.2 v i Myoporum laetum common ngaio SCROPHULARIACEAE v i ❀ Nasturtium officinale common watercress BRASSICACEAE o n Navarretia atractyloides holly-leaf pincushion plant POLEMONIACEAE v n Navarretia hamata subsp. parviloba grapnel pincushion plant POLEMONIACEAE v n Nemacaulis denudata var. denudata coast woolly-heads POLYGONACEAE 1B.2 ? n Notholithocarpus densiflorus var. densiflorus tan oak, tanbark oak FAGACEAE v Scientific Name Common Name Family Rare n Nuttallanthus texanus blue toadflax PLANTAGINACEAE v n Oemleria cerasiformis osoberry ROSACEAE v n ❀ Oenanthe sarmentosa water-parsley APIACEAE v n ❀ Oenothera elata subsp. hookeri tall evening-primrose ONAGRACEAE v n Osmorhiza berteroi mountain sweet cicely APIACEAE o i Oxalis corniculata creeping wood-sorrel, OXALIDACEAE v yellow wood-sorrel i ❀ Oxalis pes-caprae Bermuda-buttercup OXALIDACEAE v n Oxalis pilosa pilose wood-sorrel OXALIDACEAE v i Oxybasis macrosperma large-seeded goosefoot CHENOPODIACEAE v n ❀ Paeonia californica California peony PAEONIACEAE v n ❀ Papaver californicum fire poppy PAPAVERACEAE v i Papaver somniferum opium poppy PAPAVERACEAE v n Parietaria hespera var. californica California pellitory URTICACEAE v n ❀ Pedicularis densiflora Indian warrior OROBANCHACEAE v n Pellaea andromedifolia coffee fern PTERIDACEAE o n Pentagramma triangularis subsp. triangularis goldback fern PTERIDACEAE v n Phacelia douglasii var. douglasii common Douglas's HYDROPHYLLACEAE o phacelia n ❀ Phacelia malvifolia stinging phacelia HYDROPHYLLACEAE v n Phacelia nemoralis subsp. nemoralis shady-woods phacelia HYDROPHYLLACEAE v n Phacelia ramosissima rambling phacelia HYDROPHYLLACEAE v n ❀ Phacelia viscida var. viscida sticky phacelia HYDROPHYLLACEAE v n Phalaris californica California canarygrass POACEAE v i Phalaris minor lesser canarygrass POACEAE v n Pholisma arenarium scaly sandplant LENNOACEAE v Scientific Name Common Name Family Rare n ❀ Pholistoma auritum var. auritum fiesta flower HYDROPHYLLACEAE v n Phoradendron villosum subsp. villosum oak mistletoe VISCACEAE o n Phyllospadix scouleri Scouler's surfgrass ZOSTERACEAE v n Phyllospadix torreyi Torrey's surfgrass ZOSTERACEAE v n bishop pine PINACEAE v n Pinus radiata Monterey pine PINACEAE 1B.1 v n Piperia michaelii Michael's rein orchid ORCHIDACEAE 4.2 v n ❀ Plantago erecta foothill plantain PLANTAGINACEAE v i ❀ Plantago lanceolata English plantain PLANTAGINACEAE v i Plantago major common plantain PLANTAGINACEAE v n Plantago maritima seaside plantain PLANTAGINACEAE v n Plantago subnuda marsh plantain PLANTAGINACEAE v n Plectritis ciliosa long-spurred seablush VALERIANACEAE v i annua annual bluegrass POACEAE r n Diablo Canyon bluegrass POACEAE 1B.2 v n Poa secunda subsp. secunda one-sided bluegrass POACEAE v n Polycarpon depressum California allseed CARYOPHYLLACEAE v i Polygonum aviculare common knotweed POLYGONACEAE v i Polygonum aviculare subsp. aviculare common knotweed POLYGONACEAE v n Polygonum paronychia beach knotweed POLYGONACEAE v n Polypodium californicum California polypody POLYPODIACEAE v n Polypodium calirhiza nested polypody POLYPODIACEAE v i Polypogon australis Chilean beard grass POACEAE v i Polypogon interruptus ditch beardgrass POACEAE v i Polypogon monspeliensis rabbitfoot grass POACEAE v i Polypogon viridis water beardgrass POACEAE v n Polystichum dudleyi Dudley's swordfern DRYOPTERIDACEAE ? Scientific Name Common Name Family Rare n Polystichum munitum western swordfern DRYOPTERIDACEAE v n Populus trichocarpa black cottonwood SALICACEAE v n ❀ Potentilla anserina subsp. pacifica Pacific silverleaf ROSACEAE v n Prunus fasciculata var. punctata dune almond, sand ROSACEAE 4.3 v almond n ❀ Prunus ilicifolia var. ilicifolia holly-leaved cherry ROSACEAE v n Pseudognaphalium beneolens fragrant everlasting ASTERACEAE v n Pseudognaphalium biolettii bicolored everlasting ASTERACEAE v n ❀ Pseudognaphalium californicum California everlasting ASTERACEAE v i Pseudognaphalium luteoalbum Jersey cudweed ASTERACEAE v n Pseudognaphalium ramosissimum pink everlasting ASTERACEAE v n Pseudognaphalium stramineum cotton-batting everlasting ASTERACEAE v n Psilocarphus tenellus slender woollyheads ASTERACEAE v n Pteridium aquilinum var. pubescens bracken fern DENNSTAEDTIACEAE v n Pterostegia drymarioides notchleaf POLYGONACEAE v n Quercus agrifolia var. agrifolia coast live oak FAGACEAE v n Quercus chrysolepis canyon live oak, gold-cup FAGACEAE v oak, maul oak n ❀ Rafinesquia californica California-chicory ASTERACEAE v n ❀ Ranunculus californicus California buttercup RANUNCULACEAE v i ❀ Raphanus sativus wild radish BRASSICACEAE v n Rhamnus crocea spiny redberry RHAMNACEAE v n Ribes divaricatum var. pubiflorum straggly gooseberry GROSSULARIACEAE v n Ribes malvaceum var. indecorum white-flowered chaparral GROSSULARIACEAE v currant n ❀ Ribes menziesii var. menziesii canyon gooseberry GROSSULARIACEAE v n ❀ Ribes sanguineum var. glutinosum pink-flowered currant GROSSULARIACEAE v Scientific Name Common Name Family Rare n ❀ Ribes speciosum fuchsia-flowered GROSSULARIACEAE v gooseberry n Rosa californica California wild rose ROSACEAE v n ❀ Rosa spithamea coast ground rose ROSACEAE v n Rubus parviflorus thimbleberry ROSACEAE v n ❀ Rubus ursinus California blackberry ROSACEAE v i Rumex acetosella sour dock, sheep-sorrel POLYGONACEAE v i Rumex conglomeratus knotted dock POLYGONACEAE v i ❀ Rumex crispus curly dock POLYGONACEAE v n Rumex salicifolius var. salicifolius willow-leaved dock POLYGONACEAE v n Rupertia physodes California-tea FABACEAE v i Sagina apetala miniature pearlwort CARYOPHYLLACEAE v n Sagina decumbens subsp. occidentalis western pearlwort CARYOPHYLLACEAE v n Salicornia pacifica common pickleweed, CHENOPODIACEAE v samphire n Salix lasiandra var. lasiandra Pacific willow SALICACEAE v n Salix lasiolepis arroyo willow, California SALICACEAE v pussywillow n ❀ Salvia columbariae chia LAMIACEAE o n ❀ Salvia mellifera black sage LAMIACEAE v n ❀ Salvia spathacea hummingbird sage LAMIACEAE v n ❀ Sambucus nigra subsp. caerulea blue elderberry ADOXACEAE v n Sanicula crassicaulis common sanicle APIACEAE v n Sanicula laciniata coast sanicle APIACEAE v n Schoenoplectus americanus American three-square, CYPERACEAE o Olney's three-square n Scirpus microcarpus small-fruited bulrush CYPERACEAE o Scientific Name Common Name Family Rare n ❀ Scrophularia californica subsp. californica California figwort SCROPHULARIACEAE v n Scrophularia californica subsp. floribunda California figwort SCROPHULARIACEAE v n Senecio aphanactis chaparral ragwort ASTERACEAE 2B.2 v n Senecio blochmaniae Blochman's groundsel ASTERACEAE 4.2 v n Senecio californicus California ragwort ASTERACEAE v i Senecio glomeratus cutleaf burnweed ASTERACEAE v i Senecio vulgaris common groundsel ASTERACEAE v i Senna multiglandulosa downy senna FABACEAE v n ❀ Sidalcea malviflora subsp. laciniata geranium-leaved MALVACEAE v checkerbloom n Sidalcea sparsifolia southern checkerbloom MALVACEAE v i ❀ Silene gallica windmill pink CARYOPHYLLACEAE v n ❀ Silene laciniata subsp. laciniata Indian pink, Mexican pink CARYOPHYLLACEAE v i ❀ Silybum marianum milk thistle ASTERACEAE v i Sisymbrium irio London rocket BRASSICACEAE v i Sisymbrium officinale common hedge mustard BRASSICACEAE v n ❀ Sisyrinchium bellum blue-eyed-grass IRIDACEAE o n ❀ Solanum douglasii Douglas' nightshade SOLANACEAE v n ❀ Solanum umbelliferum var. xanti chaparral purple SOLANACEAE v nightshade n ❀ Solidago confinis southern goldenrod ASTERACEAE v n Solidago spathulata coast goldenrod ASTERACEAE v n ❀ Solidago velutina subsp. californica California goldenrod ASTERACEAE v i Soliva sessilis field burweed ASTERACEAE v i Sonchus asper subsp. asper prickly sow-thistle ASTERACEAE v i ❀ Sonchus oleraceus common sow-thistle ASTERACEAE v Scientific Name Common Name Family Rare i Spergula arvensis corn spurrey CARYOPHYLLACEAE v n Spergularia macrotheca var. macrotheca beach sand-spurrey CARYOPHYLLACEAE o n Spergularia marina salt-marsh sandspurry, CARYOPHYLLACEAE o sticky sand-spurrey i ❀ Spergularia rubra common sand-spurrey, red CARYOPHYLLACEAE v sand-spurrey n ❀ Stachys bullata coast hedge-nettle LAMIACEAE v i Stellaria media common chickweed CARYOPHYLLACEAE o n Stellaria nitens shining chickweed CARYOPHYLLACEAE v i Stellaria pallida lesser chickweed CARYOPHYLLACEAE v n Stephanomeria elata Santa Barbara wire-lettuce ASTERACEAE v n Stephanomeria exigua subsp. carotifera Hoover's wire-lettuce ASTERACEAE v n Stephanomeria exigua subsp. coronaria white-plume wire-lettuce ASTERACEAE v n Stipa lepida foothill needlegrass POACEAE o n Stipa pulchra purple needlegrass POACEAE v n Stylocline gnaphaloides everlasting neststraw ASTERACEAE v n Suaeda californica California seablite CHENOPODIACEAE 1B.1 v n Symphoricarpos albus var. laevigatus common snowberry CAPRIFOLIACEAE v n ❀ Symphoricarpos mollis creeping snowberry CAPRIFOLIACEAE v n ❀ Symphyotrichum chilense Pacific-aster ASTERACEAE v i Taraxacum officinale dandelion ASTERACEAE o i Tetragonia tetragonoides New Zealand-spinach AIZOACEAE v n ❀ Thalictrum fendleri var. polycarpum tall meadow-rue RANUNCULACEAE v n Thysanocarpus curvipes subsp. curvipes common fringepod BRASSICACEAE o i Torilis arvensis common hedge-parsley APIACEAE v n ❀ Toxicodendron diversilobum poison-oak ANACARDIACEAE v n Trifolium depauperatum var. amplectens pale sac clover FABACEAE v Scientific Name Common Name Family Rare n Trifolium gracilentum pinpoint clover FABACEAE v n Trifolium microcephalum miniature clover FABACEAE v n ❀ Trifolium willdenovii tomcat clover FABACEAE v n Triglochin concinna var. concinna seaside arrow-grass JUNCAGINACEAE o n ❀ Trillium angustipetalum narrow-petaled wakerobin MELANTHIACEAE v i Triticum aestivum wheat POACEAE v i ❀ Tropaeolum majus garden nasturtium TROPAEOLACEAE v n Turritis glabra tower mustard BRASSICACEAE v n Typha domingensis southern cattail TYPHACEAE o n ❀ Typha latifolia broad-leaved cattail TYPHACEAE o n Umbellularia californica California laurel, California LAURACEAE o bay n ❀ Uropappus lindleyi silverpuffs ASTERACEAE v n ❀ Urtica dioica subsp. holosericea perennial stinging nettle URTICACEAE v i Urtica urens annual stinging nettle URTICACEAE o n ❀ Vaccinium ovatum California huckleberry ERICACEAE v n ❀ Verbena lasiostachys var. lasiostachys western vervain VERBENACEAE v n Vicia americana subsp. americana American vetch FABACEAE v n Vicia gigantea giant vetch FABACEAE v n Vicia hassei slender vetch FABACEAE v i ❀ Vicia sativa subsp. sativa common vetch FABACEAE v i Vinca major greater periwinkle APOCYNACEAE v i Viola odorata English violet VIOLACEAE v n ❀ Viola pedunculata Johnny jump-up, wild VIOLACEAE v pansy n Woodwardia fimbriata giant chain fern BLECHNACEAE v Scientific Name Common Name Family Rare ? Xanthium spinosum spiny clotbur, Spanish- ASTERACEAE v thistle n Zostera marina common eelgrass ZOSTERACEAE v